Design and Development of Metal-Forming Processes and by Ming Wang Fu

By Ming Wang Fu

This e-book offers state of the art study on forming procedures and shaped steel product improvement aided by way of the Finite point technique (FEM). utilizing vast and informative illustrations, tables and pictures, it systematically provides real-life case reports and verified findings relating to numerous forming tactics and techniques aided via FEM simulation, and addresses a variety of concerns with regards to steel shaped half layout, strategy selection, die layout and die provider lifestyles research and prolongation, in addition to product caliber coverage and improvement.

Metal forming has been normal in lots of industries. This conventional production method, despite the fact that, has lengthy been associated with decades of apprenticeship and expert craftsmanship, and its traditional layout and improvement paradigm seemed to contain extra knowledge and trial-and-error than in-depth clinical calculation, research and simulation. The layout paradigm for forming methods and steel shaped product improvement therefore can't meet the present calls for for brief improvement lead-times, low creation expenditures and excessive product caliber. With the appearance of numerical simulation applied sciences, the layout and improvement of forming methods and steel shaped items are performed using FEM simulation, permitting the entire power layout areas to be pointed out and evaluated, and the easiest layout to eventually be decided and applied. one of these layout and improvement paradigm goals at making sure “designing correct the 1st time” and lowering the necessity for trial-and-error within the workshop. This publication offers postgraduates, production engineers and pros during this box with an in-depth realizing of the layout approach and adequate wisdom to help steel shaped half layout, forming approach selection, tooling layout, and product caliber insurance and keep an eye on through FEM simulation.

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Additional info for Design and Development of Metal-Forming Processes and Products Aided by Finite Element Simulation (Engineering Materials and Processes)

Example text

7 shows a cylinder with axial symmetry. In the figure, the cross section of the cylinder is divided into two reflectional parts around the symmetrical axis. From geometry perspective, one reflectional geometry can represent the other. In simulation, the axisymmetric systems or objects can be simplified as a 2D problem or can be represented by part of the axisymmetric systems. In engineering, there are many axisymmetric products or systems, which can be analyzed and simulated by using the characteristics of the axisymmetric characteristics.

Modeling is an action process to build model. The models can be classified static and dynamic models. The most important difference in-between the static and dynamic models is the run-time representation. The static modeling is a time-independent representation of the system, while dynamic modeling is the run-time model of the system. Therefore, the dynamic models keep changing with reference to time, whereas the static models are at equilibrium in a steady state. Simulation is a process of using models to reveal the behaviors, phenomena, functions, or performance of a real or theoretical system via identification of the values and variations of the related physical variables of concern.

From geometry point of view, a fractal is a shape made up of parts that are the same shape as itself and are of smaller and smaller sizes. Fractals also exhibit a form of scale symmetry, where small portions of the fractal are similar in shape to large portions. In FE simulation, scale symmetry is more referring to the geometrical similarity, ratio, and proportion of the system to be modeled. From the physical behavior of real-life perspective, there are two scenarios: One is the same physical behaviors and performances of the size-scaled system to be modeled, and the other Symmetry plane Fig.

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